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GECO · Pistol

GECO ACTION EXTREME 9 mm Luger 7,0g

0.168BC (G1)
108.0gr7.00 g
400m/s1312 fps
560J413 ft·lb
ManufacturerGECO
Calibre9.02 mm (.355")
Bullet weight108.0 gr  ·  7.00 g
Ballistic coefficient G10.168
Ballistic coefficient G7not published
Drag model usedG1
Muzzle velocity400.0 m/s  ·  1312 fps
Muzzle energy560 J  ·  413 ft·lb
Sectional density0.122
Form factori1 0.728
CategoryPistol
SourceGECO website 2026-07-02 (verified)

Reading these numbers

Only a G1 ballistic coefficient is published for this load, so BallisticApp solves it against the G1 drag table. G1 BC drifts with velocity — the figure below is valid near the muzzle and drops off as the bullet slows.

Muzzle energy of 560 J (413 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.122 describes weight per unit of frontal area; divided by the ballistic coefficient it gives the form factor, which is how much drag the shape adds over the standard projectile.

Among the 11 loads of this bore diameter in the database, this one's G1 BC of 0.168 is higher than 6 of them.

Similar 9.02 mm (.355") loads

Turn this into a drop table for your rifle.

These figures are the bullet's starting point. What you actually dial depends on your rifle's zero, the air you're shooting in and the wind on the day — BallisticApp solves that on the phone, offline, using the same G1/G7 tables and this database.

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